Add support for handling a 182 Queued response.

(closes issue #10924)
Reported by: ramonpeek
Patches:
      queued-182.diff uploaded by ramonpeek (license 266)


git-svn-id: https://origsvn.digium.com/svn/asterisk/branches/1.4@85277 65c4cc65-6c06-0410-ace0-fbb531ad65f3

channels/chan_sip.c

@@ -11834,7 +11834,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
 	/* RFC3261 says we must treat every 1xx response (but not 100)
 	   that we don't recognize as if it was 183.
 	*/
-	if (resp > 100 && resp < 200 && resp!=101 && resp != 180 && resp != 183)
+	if (resp > 100 && resp < 200 && resp!=101 && resp != 180 && resp != 182 && resp != 183)
 		resp = 183;
 
  	/* Any response between 100 and 199 is PROCEEDING */
@@ -11855,6 +11855,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
 		break;
 
 	case 180:	/* 180 Ringing */
+	case 182:       /* 182 Queued */
 		if (!ast_test_flag(req, SIP_PKT_IGNORE))
 			sip_cancel_destroy(p);
 		if (!ast_test_flag(req, SIP_PKT_IGNORE) && p->owner) {
@@ -11867,7 +11868,7 @@ static void handle_response_invite(struct sip_pvt *p, int resp, char *rest, stru
 			p->invitestate = INV_EARLY_MEDIA;
 			res = process_sdp(p, req);
 			if (!ast_test_flag(req, SIP_PKT_IGNORE) && p->owner) {
-				/* Queue a progress frame only if we have SDP in 180 */
+				/* Queue a progress frame only if we have SDP in 180 or 182 */
 				ast_queue_control(p->owner, AST_CONTROL_PROGRESS);
 			}
 		}
@@ -12416,6 +12417,10 @@ static void handle_response(struct sip_pvt *p, int resp, char *rest, struct sip_
 			if (sipmethod == SIP_INVITE) 
 				handle_response_invite(p, resp, rest, req, seqno);
 			break;
+		case 182:       /* 182 Queued */
+			if (sipmethod == SIP_INVITE)
+				handle_response_invite(p, resp, rest, req, seqno);
+			break;
 		case 200:	/* 200 OK */
 			p->authtries = 0;	/* Reset authentication counter */
 			if (sipmethod == SIP_MESSAGE || sipmethod == SIP_INFO) {